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Markets Flat at Opening

Wall Street opened flat after the long holiday weekend, as the markets headed into the tepid summer months and digested discouraging home price data released before opening.

In the first 15 minutes of trading, the Dow was essentially flat.

The broader S&P 500 was the same, but the tech-heavy Nasdaq was up about half of 1 percent.

National home prices plunged a record 19.1 percent in the first quarter of this year compared with the same period last year, the S&P/Case-Shiller Index reported this morning. Home prices are now down 32.2 percent since their second-quarter 2006 peak.